Draw lines to where you want the distress to be
Put your cardboard in between were you are cutting and the rest of the denim. Now take your blade and cut where the lines are, a scissor blade works just fine!
Pull the blue threads out. It will be tough to get out at first. TIP: try using dull tweezers so they don't cut the threads!
This is what the thread will look like, and they will get everywhere!
Try to pull out threads that are beside each other. It makes them easier to take out.
Keep pulling them out..
And this is what it will look like!
- X-Acto Knife/ blade